Internal gage.



L. SCUSA.

INTERNAL GAGE. APPLICATION ruin mm. 12. r'qls.

1,318,697. v Patented Oct. 14,1919.

INVENTOR. L //v0 ScusA A TTORNE Y.

rm til mil PLANOURAP" C04, VMSHINUTON, I) i:.,

UNITED sr TEs PATENT, OFFICE. I

; LINO SCUSA, or PHOENIX, NEWYORK: l

/ INTERNAL GAGE."

To all Mam z t may concern; 1

Be it known that I L no Sousa, a citizen of the UnitedStates,residing at Phoenix, -in the county of Oswego and State o-fNew .York, have invented certain new. and useful Improvements, in Internal Gages, of which the followlng is a specificatlon.

This invention relates to improvements in gages, and has for its object to provide a novel and simple adjustable tool of the class, which is adapted for use .as a master gage, by which other gagesmay be set, verified and corrected,.as well as for the ordinary gage work. A further object is to provide an adjustable gage which is particularly adapted, for gaging internal work, such as slots and grooves,as well as for gaging the distance between the points oflimit or snap gages. And a further object is to provide an-internal limit gage, wherein a' plurality of :alining gagebolts are .adjustably fitted inasuitable body, the bolts at one end-of the body being rigidly set, while the bolts at theopposite end are adjustable toward and away from the rigid bolts, forvarying the range and latitude of thegage.

' I attain these ob'ects-by the means 7 set forth in the detailed description which foling drawing, in which lows, and as illustrz ted by the faccompany .line'1 1:of Fig.3. Fig. 2isfanend View;

showing the fixed'fgage bolts. Fig. 3 is a similar view of the opposite end, partially;

in elevation and partially in vertical cross section, the latter being taken on hne 3'3 one of the adjusting screws, fand one :of the adjustablebolts. Fig. 8 is .areduced side;

view of the gage; showing the use of the samefor gaging the breadth or. length of a slot or groove. Figs. 9 and 10 are respece tively a sideview, and a central vertical cross-section; showing a modified construction of the gage body.-

V In the drawing, referring to-Figs. toft inclusive, the body of thegage, which-isv preferably I-shaped, and made of cast iron, consists of similar T-heads 2 and 2, which are connected by an integral oblong bar or column 2 The head 2 is bored out for a part of its breadth, to provide spaced parallel longitudinal sockets 3 and 4, in which "Specification of Letters Patent. Patented O t 14 1919; e Application filed March 12, 1919.- seria1 Nd. 282,146. A i

are preferably driven fixed gage bolts 3" and 4:, the freeendsof which preferably project anequal distance beyond and clear of the head 2, for facilitatinggaging.withthem in the various adjusted positions. The 7 screws 3? and 4} are operable by means of a screwr'dr vershown by dotted lines at m in F 1g. 1. By providing-the similar alining bolts 33i? ,and 44E, the device may be set for gaging both the rough cutsand the finished work. TOr,,the corresponding bolts may beset for gaging separate pieces of is required. r

Inthe preferred form. of the device,the reciprocable bolts 3 and 4 are held'rigidly [in the adjustableposition by means of similar" locking members 5, eachof which has opposltely facing conical portions L, 5-, disposed between its cylindrical ends '55; The

conical portions 5 are preferablydisposed eccentric to the axes of the ends of said members. The lockingmembers' 5, ;re disposed in lateral-sockets or holes 5, which pass through thehead 2v and intersect with the holes Wanda, as best seen in Figs. 1"

and 3'. In order to, effect the rigid frictional engagement between the cones 5 andthe adjustable Y bolts, the latter are provided withsimilar bevel or plane surfaces 6, which tight frictional engagement with the planes .6, foryrigidly locking and holding the. ad-

justable bolts against the adjusting screws 33 -45 ably operated by a screw-driver ends of the adjustable bolts tightly against the inner endsof the set-screws.

work of. different dimensions, where no limit form dull V-teeth along'one'side of said bolts (seeFigs. 1, 3 and By arranging the cones 5 eccentric to the sockets: 5, it only requires aslight partial rotation of the. locking members to bring the cones into In Fig. 8 my gage is shown in connection with a piece of work 7 (shown by dotted lines), wherein the gage-bolts 32-3? are gaging the length or breadth of a slot 7', which may be understood to be the last or finish dimension of said slot; while the gagebolts 4L4, for example, had previously been set and used for gaging the first or rough cutting of the slot 7 as indicated by the dotted line 7 Figs. 9 and 10 illustrate a slight modification of the construction of the gage body, wherein the bar or column 8, which connects the heads 2 and 2, is fluted, as at 8, for providing clearance for the insertion and operation of the screws 3 and P. A particular object of the fluted or concave col-' umn is to increase its strength, so as to prevent possible springing of the body while the gage is being used. This is an important provision, especially in the case of small gages, wherein the gage-bolts are disposed close together, which necessitates the narrowing of the neck or column 8, and renderform of the device.

ing the same liable to spring when the gage is forced'into close fitting work. By grooving the lateral edges of the column 8, the latter is adequately reinforced by increasing the breadth of the metal adjacent the top and bottom sides of the column. Otherwise, the arrangement, operation and locking of the gage-bolts of the modified structure are the same as shown in the preferred for gaging slots of different breadths, and

means for locking said adjustable bolts in place. 7

2. In an internal gage, a plurality of adjustable gage bolts, an I-shaped body comprising similar T-heads connected by a relatively narrow column, one of said heads bored out to receive said adjustable bolts, the opposite head provided with sockets cor- The inner corners of responding to and alining with said adjustable bolts, a gage bolt rigidly disposed in each of said sockets and projecting beyond the outer face of the head, and means for locking said adjustable bolts in different positions axially.

3. In an internal gage, a body comprising an oblong part provided at its opposite ends with similar T-heads, the corresponding projecting ends of said heads bored out to provide alining sockets for the reception of gage bolts, permanent gage bolts partially set in the sockets of one head, adjustable gage bolts correspondingly disposed in the sock ets of the opposite head, screws for permitting the adjustment of the latter bolts toward and away from the permanent bolts, and means for locking said adjustable bolts in various adjusted positions.

4. In an internal gage, the combination with a plurality of permanent and adjustable gage bolts, of an oblong. body having similar cross-heads which project laterally beyond the opposite edges of the body, one of said heads provided with spaced sockets whose axes are parallel to the opposite edges of said body adapted to receive said permanent bolts, the other head bored out in line axially with saidsockets adapted to receive said adjustable bolts, and means for locking said adjustable bolts against rota-' tion, as well as against longitudinal movement. 5. In an internal gage, an I-shaped body, its'opposite ends comprising similar integral T-heads, the corresponding ends of said heads provided with axially alining sockets, permanent gage bolts disposed in the sockets of one head, reciprocable bolts disposed in the sockets of the other head, means for holding saidreciprocable bolts from longitudinal movement in one direc tion, and means for locking said reciprocable bolts against longitudinal movement in the opposite direction and also for preventing the rotation of said bolts.

6. A body for internal gages, including an oblong portion having at its opposite ends similar cross-heads which project beyond its lateral edges, the projecting ends of both of said cross-heads provided with alining sockets, and the ZlXS of the corresponding sockets of sald'cross-heads disposed beyond and parallel to the lateral edges of said oblong portion.

In testimony whereof I afliX my signature.

LINO SCUSA.

Copiesot this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, 1L0." 

